Altieri Federica, Guarnieri Rosanna, Mezio Martina, Padalino Gabriella, Cipollone Angela, Barbato Ersilia, Cassetta Michele
Department of Oral and Maxillofacial Sciences, "Sapienza" University of Rome, 6-00161 Rome, Italy.
Dent J (Basel). 2020 Nov 18;8(4):129. doi: 10.3390/dj8040129.
The aim of this case report is to present an innovative combined orthodontic-surgical technique to disimpact mandibular second molar (MM2) using an orthodontic miniscrew and an elastic chain. The impact on the Oral health-related quality of life (OHRQoL) was also evaluated. Using the present techinique, it is possible to expose the impacted tooth, insert a self-drilling miniscrew in the retromolar area, and remove the bud of third mandibular molar. At the same time the orthodontic force is applied with the use of an elastomeric chain that connects the head of miniscrew and vestibular and oral buttons bonded on MM2. A close traction is performed for the whole treatment time without the reactivation of the elastic force. The use of skeletal anchorage allowed the disimpaction of impacted MM2 in a short treatment time (about three months) avoiding the typical biomechanical side effects of traditional orthodontic appliance and increasing the effectiveness of the treatment. Further studies are necessary to evaluate the real advantages and disadvantages of this combined orthodontic-surgical approach.
本病例报告的目的是介绍一种创新的正畸-外科联合技术，该技术使用正畸微螺钉和弹力链来解除下颌第二磨牙（MM2）阻生。同时还评估了对口腔健康相关生活质量（OHRQoL）的影响。运用当前技术，可以暴露阻生牙，在磨牙后区植入自攻微螺钉，并去除下颌第三磨牙的牙胚。与此同时，通过连接微螺钉头部与粘结在MM2上的前庭和口腔纽扣的弹力链施加正畸力。在整个治疗期间进行紧密牵引，无需重新激活弹力。使用骨锚固技术可在短时间（约三个月）内解除MM2阻生，避免了传统正畸矫治器典型的生物力学副作用，并提高了治疗效果。有必要进行进一步研究以评估这种正畸-外科联合方法的实际优缺点。
